Author of books:Lincoln and His Party in the Secession Crisis (1942, history)Nationalism and Sectionalism in America, 1775-1877: Select Problems in Historical Interpretation (1949, history)Government and the American Economy 1870-Present: Select Problems in Historical Interpretation (1950, history)People of Plenty: Economic Abundance and the American Character (1954, economics)Eight Issues in American History: Views and Counterviews (1966, history)The South and the Sectional Conflict (1968, history)The South and the Concurrent Majority (1972, history)History and American Society: Essays (1973, history)The Impending Crisis, 1848-1861 (1976, history)Freedom and Its Limitations in American Life (1976, essays)